AP chemistry predicted FRQ? & multiple choice practice?

<p>Can anyone guess the FRQ types on this Chem exam coming up?
Are there % of which topic comes up the most?</p>

<p>.. Also,
People have been telling me to do the practice multiple choice problems, since they will be most likely be recycled.
Are there any solved out problems or any practice I can refer to?
I have Barrons book, but I don't know if that is as useful as released multiple choice questions.</p>

<p>Thanks for support.</p>